(R)-3-(((R)-3-(((6R,10R,16R,20R)-135-(hydroxymethyl)-6,10,16,20-tetramethyl-4,8,12,14,18,22-hexaoxo-3,7,11,15,19,23-hexaoxa-1,13(1,3)-dibenzenacyclotetracosaphane-15-carbonyl)oxy)butanoyl)oxy)butanoic acid 在
吡啶 作用下,
以
四氢呋喃 、
二氯甲烷 为溶剂,
反应 48.5h,
生成 (6R,10R,22R,26R,35R,39R)-6,10,22,26,35,39-hexamethyl-5,9,13,21,25,29,34,38,42-nonaoxatetracyclo[15.15.11.1
3.31.1
15.29]pentatetraconta-1,3(45),15,17,19(44),31-hexaene-4,8,12,20,24,28,33,37,41-nonone methylene dichloride